Soil Testing and Formulated Fertilization测土配方施肥

Soil testing and formulated fertilization is a technical approach that determines the appropriate application rates and ratios of nitrogen, phosphorus, potassium and secondary and micro elements by testing soil nutrient content and matching it to crop nutrient requirements. Its principle is to supply precisely what is deficient, in the amount needed, and it is the primary means of achieving fertilizer reduction and efficiency gains.